unity_native_render_plugin/Assets/Editor/TexturePack/TextureMapInfo.cs

using System;
using System.Collections.Generic;
using System.IO;
using Unity.Mathematics;
using UnityEditor;
using UnityEngine;
using UnityEngine.Rendering;

namespace TexturePacker
{
    public sealed class TextureMapInfo : ScriptableObject
    {
        public const string TextureMapDir = "Assets/Editor/TexturePack/Resources";

        [Serializable]
        public struct TextureInfo
        {
            public Texture2D OriginTexture;
            public int ArrayIndex;
            public float2 Offset;
        }

        [Serializable]
        public enum EPackType
        {
            Atlas,
            Array
        }

        public EPackType PackType = EPackType.Atlas;
        public SerializedDictionary<Texture2D, TextureInfo> OriginTexture2TextureInfo = new();
        public List<Texture2D> Textures;
        public List<UnityEngine.Object> Fbxs;
        public Texture2D TextureAtlas;
        public float AtlasScale;
        public string TextureAtlasPath;
        public Texture2DArray TextureArray;
        public string TextureArrayPath;
        public bool IsNormalMap;
    }

}